Fair Value Calculator
Fair value, valuation status and quality score for 40,000+ stocks, plus your watchlist and alerts.
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport http fair-value-calculator 'https://www.fairvalue-calculator.com/mcp'{
"mcpServers": {
"fair-value-calculator": {
"type": "http",
"url": "https://www.fairvalue-calculator.com/mcp"
}
}
}Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
Contents
Fair Value Calculator MCP server
Hosted Model Context Protocol server of Fair Value Calculator. It lets an AI assistant look up what a listed stock is worth according to our valuation models, instead of estimating a number from memory.
This repository holds the documentation and the registry manifest (server.json). The server
itself is a hosted service; there is nothing to install or run locally, and its source code is
not part of this repository.
| Endpoint | https://www.fairvalue-calculator.com/mcp |
| Transport | Streamable HTTP |
| Authentication | OAuth 2.1 with dynamic client registration. A free account is enough. |
| Registry name | com.fairvalue-calculator/fair-value |
| Setup guides | https://www.fairvalue-calculator.com/integrations |
| Overview | https://www.fairvalue-calculator.com/mcp |
What it covers
Fair value per share, valuation status and a quality score for 35,000+ listed stocks worldwide. The fair value is blended from several valuation models on reported fundamentals and is recalculated daily. Method and limits: https://www.fairvalue-calculator.com/methodology.
The numbers are model estimates, not prices and not investment advice. Where the data does not support a figure, the server returns the verdict without a number instead of a weak estimate.
Tools
| Tool | What it does |
|---|---|
resolve_stock | Turns a name, ticker or ISIN into the matching listing, up to five matches. |
get_stock_preview | Verdict, distance to fair value in bands and quality score for one stock, without the exact number. |
get_stock_verdict | Fair value per share with currency, distance to the price, verdict, quality score and data level, with a link to the full analysis. |
compare_stocks | Several stocks side by side with the same values. |
screen_stocks | Stocks matching criteria: minimum distance to fair value, minimum quality, sector, region. |
get_watchlist | Reads the watchlist of the signed-in account. |
add_to_watchlist | Adds a stock to the watchlist. |
remove_from_watchlist | Removes a stock from the watchlist. |
set_watchlist_alerts | Switches the e-mail alerts of the account's watchlist on or off (Pro). |
suggest_watchlist_stocks | Suggests up to eight stocks that fit the saved watchlist: priced below fair value, high quality score, not held yet, ranked with their correlation to the stocks already on it; can also suggest a replacement of similar size for one stock. Changes nothing (Pro, not offered in ChatGPT yet). |
The three tools that change the watchlist or alerts ask for separate consent during sign-in.
Free accounts get the verdict tools with monthly limits; exact fair values for all stocks, comparisons of up to five stocks, alerts and watchlist suggestions are part of Pro. Current limits and prices: https://www.fairvalue-calculator.com/pro.
Connect
In any client that supports remote MCP servers, add the endpoint and sign in when prompted:
https://www.fairvalue-calculator.com/mcpClaude Code:
claude mcp add --transport http fair-value-calculator https://www.fairvalue-calculator.com/mcpCodex:
codex mcp add fair-value-calculator --url https://www.fairvalue-calculator.com/mcpCursor (.cursor/mcp.json):
{"mcpServers":{"fair-value-calculator":{"url":"https://www.fairvalue-calculator.com/mcp"}}}VS Code: run "MCP: Add Server", choose HTTP and paste the endpoint.
This repository is also a Cursor plugin (plugins/fair-value-calculator), which registers the same endpoint.
Gemini CLI (this repository is also a Gemini CLI extension, gemini-extension.json):
gemini extensions install https://github.com/petz00711/fair-value-calculator-mcpStep-by-step guides for Claude, ChatGPT, Claude Code, Cursor, VS Code and Codex: https://www.fairvalue-calculator.com/integrations.
Example questions
- "What is Apple worth according to Fair Value Calculator?"
- "Which European technology stocks are undervalued right now?"
- "Compare Microsoft, Alphabet and Meta."
- "Add Nestlé to my watchlist."
Open data
Monthly market valuation datasets (CC BY 4.0): https://github.com/petz00711/fvc-open-data, DOI 10.5281/zenodo.21639205.
Support
Questions and problem reports: office@fairvalue-calculator.com, or open an issue here.
License
The documentation and manifest in this repository are licensed under CC BY 4.0. The hosted service is proprietary and is used under the terms at <https://www.fairvalue-calculator.com/legal.php?doc=agb&lang=en>;.
Frequently asked questions
What is Fair Value Calculator?
Fair value, valuation status and quality score for 40,000+ stocks, plus your watchlist and alerts.
How do I install Fair Value Calculator?
It runs as a remote server. In Claude Code: claude mcp add --transport http fair-value-calculator 'https://www.fairvalue-calculator.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does Fair Value Calculator need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Is Fair Value Calculator open source?
Its code is public on GitHub, but the repository does not declare a standard license.
Who maintains Fair Value Calculator?
It is published by petz00711. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.